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Burundi

13,684,215

Population now
vs

Sierra Leone

9,520,599

Population now

As of 2026, Burundi has a population of about 13,684,215 while Sierra Leone has about 9,520,599 — a difference of 4,163,616 people. Sierra Leone is growing faster (2.7% per year).

BurundiMetricSierra Leone
2.5% Growth rate / yr 2.7%
32.5 Birth rate / 1,000 36.0
7.5 Death rate / 1,000 9.0
491.6 Density / km² 132.7
49.8% Male % 50.2%
70.0% Literacy % 55.0%
9.0% Smoking % 8.0%
46.2 Life expectancy 45.3